Development length
Development length
(OP)
Hi all
I am designing concrete beam and column connection
I assumed connection to be fixed but I can not extend negative reinforcement at end column, can I develop bars so that its development length is U shape (i.e. top Rft. will reach end of column then bent down the depth of beam and then bent again and stop with beam Bottom reinforcement
I am designing concrete beam and column connection
I assumed connection to be fixed but I can not extend negative reinforcement at end column, can I develop bars so that its development length is U shape (i.e. top Rft. will reach end of column then bent down the depth of beam and then bent again and stop with beam Bottom reinforcement






RE: Development length
DaveAtkins
RE: Development length
RE: Development length
Note that the advantage gained by hooking a rebar seems to be in conflict with the theory behind Appendix "D", which has downgraded the effect of hooking anchor bolts.
RE: Development length
RE: Development length
i do not care for having standard hook, is it a must to have it?
it is ok for me to develop bar by 55 X Dia. but this will not be achived except if i bent the bar ib U shape
it is difficult for me to consider it simple beam due to large deflection that will result from this
RE: Development length
Make sure that your column and beam are designed to carry bending moment around the corner.
RE: Development length
DaveAtkins
RE: Development length
When you say "assumed connection to be fixed" I trust that you mean the connection is rigid, not fixed in an absolute sense. (Apologies if the terms have the same meaning where you are.)
RE: Development length
Good Luck!
RE: Development length
the beam is in first floor and the building is two story height so I detailed column bars as extending up the end up of beam by 50 times bar diameter and then will be spliced with bars of column for second floor and top beam Rft. will go till outer face of column then bent down till bottom of beam and then back inside beam at its bottom face
Will it work like this?
RE: Development length
You should splice the column bars with a Class B lap splice. 50 bar diameters may not be enough lap.
DaveAtkins